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ggltaiaa tang item1 @ifica- GEOllGIl W. WOOD, OF RICHMOND, INDIANA,ASSIGNOR TO IIIMSEIJF AND JAMES W. SALTER, OF SAME PLACE.

Letters .Patent No. 74,741, elated February 18, 1868.

IMPROVEMENT IN COLOR-PRINTING PRESSES.

TO ALL WIIOM I'I MAY CONCERN: Y

Be it known that I, GEORGE W. WOOD, of Richmond, in the county of Wayne,and State of Indiana, have invented anew and useful Improvement inIuking-Apparatus for Printingr in more than one Color; and I do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the annexed drawings, making part ofthis speciication, in which Figurel is an elevation partly in section.

Figure 2 is a vertical longitudinal section.

Figure 3 `is an end View ofthe rollers and their journal-boxes.

Figure4 is a front elevation ofthe sanne.

Figure 6 is an elevationA of onerotthe adjusting-riglets; and

Figure 5 an elevation of one ot` the inkingseglnents. p

The saine letters are employed in the diil'erent gures in thedesignationof identical parts.

My invention relates to improvements made o'n my inking-apparatus as setforth in Letters Patent granted and bearing date June 18, A. D. 1867, towhich rel'ercncc is made for the'rnore perfect explanation of thismachine.

In that machine I employed a series et'` sector-plates attached to theaxle, for more convenient alteration in changing from one form ot typeto another differently arranged. I vpropose to substitute for thesector-plates therein described segmental plaies, A, for transferringthe ink from the fountain tothe typen-Oilers. One .improvement consistsin this change, and/in the mode ol` attaching the segmental color-platesand the intermediate adjusting-riglets to the shaft. Another improvementis in the arrangement of theink-distrihuting rollers upon adjustablehearings in such manner that they shall be in contact with the segmentalplates while revolringby them, while the work of distribution goes oncontinuously; and also7 in so connecting the distributing-rollers thatthey may be adjusted in such vmanner as to compensate for the shrinkingofthe sott rollers.` i

In the case presented in the drawingsI have shown an apparatus forprinting in three colors. The apparatus may, however, be adapted toprint in a greaterf number of colors; and when I speak ofthe particulararrangement set forth, I must be also understood to include suchmodifications as would be requisite in the construction of a. machine toprint in four or more colors. it Y In the drawings, A A are segmentalplates, for transferring the colors from the distributing-rollers anddisposing them in bands on the type-rollers. They are in form segmentsof'circles, having for their centres the centre, of the shaft X. On theare of' the scgmentare notches, A/which I preFer to construct asrepresented in g. 6. These segments are attached to thethrecfor more, itmore than three colors`are to be used) sided centre B attached to theshaft X. This centre has a longitudinaldove-tailed rib, B", on which thesegmental plates A are fastened by hooking them on, if formed as shownin fig. 6,1 or by sliding on from the end, if hevelled on both endsofthe notch, to correspond with the dove-tailed rih` Blf The spacesbetween the plates A are filled adjustably by riglets, C, notched withsquare notches at C. 'The plates A must he adjusted in sets, tocorrespond with the lines of type in the fornito which the respectivecolors are to be transferred, each set of segmental plates carrying onecolor. When the plates are adjust-ed, they are held in place by 'thecompression of the screws I)2 passing through the cam-wheels D. I

The construction of these cam-wheels is fully set forth in` my formerpatent. The grooves D operate the wheels E upon the boxes of thedistrihating-rollers, so as to have the said rollers pressing againstthe face of their appropriate set of plates A by the tension'ot thesprings F3 during onethird ofthe revolution, or pressed away by the camduring the period when the other sets of plates are passing, so thateach set of segmental plates shall receive only its appropriate color.The distributing-rollers are attached to the adjustable hoxes F and F2,united by a set-screw, II1, passing through a slot in the box F, so asto permit the rollers to be drawn together when the soft" rollershrinks, as it will `do when it becomes dry. The box F is pivoted ateach end to the side frame, so as to permit the roller I to oscillatetowards and from the edge of the plates A. The roller Ix'. is'driven hya belt from the pulley M, passing aronnd'the pulley K', and the frictionof its face lagainst the4 roller K causes it to revolve. On the shaft ofthe latter roller isla pulley, with a slot cut transversely on its face,to receive the pn'II, and to give a longitudinal reciprocating motion tothe roller I as it revolves, effecting a. more perfect distribution byfamiliar means. The distributing-rollers receive the ink from acorresponding series of fountains, which being of ordinary constructionare not shown7 and transfer it to the corresponding sets of segmentalplates, which,"as they revolve in contact with the type-rollers L, willtransfer the ink in bauds of the several colors upon tbe type-rollers,from which the colors are by one movement transferred simultaneously tothe lines of type. i

What I-claim as my invention, and desire to secure by Letters Patent, is

1. The adjustable segmental plates A, for transferring the ink from thedistributing to the type-rollcrs, attached to a centre, B, and used incombination with intermediate adjustable riglets, or their equivalents,substantially in the mannerset forth. K

2. The combination of the distributing-rollers, the segmental plates A,and the type-rollers, substantially as set forth.

3. The combination of the rollers l and K and their adjustable boxes FF2, substantially as and for the purpose set forth. I

4. S0 arranging the rollers I and K, and the plates A, that while theWork of distribution on the rollers goes on continuously, the roller Ishall, by the oscillation of its bearings, be brought in contact onlywith its appropriate set of transferring-plates, and be removed whilethe other sets are passing, bsubstantially as set forth. In testimonywhereof, I have signed my name to this specification in the presence oftwo subscribing witnesses.

' GEO. W. WOOD.

Witnesses:

JOHN S. HOLLINGSHEAD, JOHN D. BLoon. d

